feat: add gpt oss 120b model (#29)

* feat(provider): add gpt-oss-120b model support

- add gpt-oss-120b and openai/gpt-oss-120b model mappings to endpoint URL
- update model capabilities table in README with new model
- update tool calling example to use openai/gpt-oss-120b

* chore: add changeset for gpt-oss-120b model support

Author: TimPietruskyRunPod

.changeset/add-gpt-oss-120b-model.md

@@ -0,0 +1,6 @@
+---
+"@runpod/ai-sdk-provider": minor
+---
+
+Add support for `openai/gpt-oss-120b` model. Users can now use this 120B parameter open-source GPT model for text generation and tool calling. The model supports streaming and tool usage.
+

README.md

@@ -106,9 +106,10 @@ for await (const delta of textStream) {
 
 ### Model Capabilities
 
-| Model ID             | Description                                                         | Streaming | Object Generation | Tool Usage | Reasoning Notes           |
-| -------------------- | ------------------------------------------------------------------- | --------- | ----------------- | ---------- | ------------------------- |
-| `qwen/qwen3-32b-awq` | 32B parameter multilingual model with strong reasoning capabilities | ✅        | ❌                | ✅         | Standard reasoning events |
+| Model ID              | Description                                                         | Streaming | Object Generation | Tool Usage | Reasoning Notes           |
+| --------------------- | ------------------------------------------------------------------- | --------- | ----------------- | ---------- | ------------------------- |
+| `qwen/qwen3-32b-awq`  | 32B parameter multilingual model with strong reasoning capabilities | ✅        | ❌                | ✅         | Standard reasoning events |
+| `openai/gpt-oss-120b` | 120B parameter open-source GPT model                                | ✅        | ❌                | ✅         | Standard reasoning events |
 
 ### Chat Conversations
 
@@ -129,7 +130,7 @@ import { generateText, tool } from 'ai';
 import { z } from 'zod';
 
 const { text, toolCalls } = await generateText({
-  model: runpod('qwen/qwen3-32b-awq'),
+  model: runpod('openai/gpt-oss-120b'),
   prompt: 'What is the weather like in San Francisco?',
   tools: {
     getWeather: tool({

src/runpod-provider.ts

@@ -62,6 +62,8 @@ Creates an image model for image generation.
 const MODEL_ID_TO_ENDPOINT_URL: Record<string, string> = {
   'qwen/qwen3-32b-awq': 'https://api.runpod.ai/v2/qwen3-32b-awq/openai/v1',
   'ibm-granite/granite-4.0-h-small': 'https://api.runpod.ai/v2/granite-4-0-h-small/openai/v1',
+  'gpt-oss-120b': 'https://api.runpod.ai/v2/gpt-oss-120b/openai/v1',
+  'openai/gpt-oss-120b': 'https://api.runpod.ai/v2/gpt-oss-120b/openai/v1',
 };
 
 // Mapping of Runpod image model IDs to their endpoint URLs